Since it was invented in the 19th century, the basic concept of the bicycle has stayed the same. That may be changing. Some believe the "Copenhagen Wheel" can be the future of urban transportation.

At his Cambridge, Mass., workshop, Assaf Biderman is reinventing the wheel.

"You start pedaling. The wheel Cheap Nike Air Max 2017 understands how you pedal and then it helps you," he explained. "It just pushes you, multiplying your power up to 10 times."

It works like this: replace a regular bike wheel with a Copenhagen Wheel. The bike now works like an electric hybrid Wholesale Nike Air Max 2017 car. A tiny computer tells the motor when to kick in. Plug the wheel into the wall to recharge it or just ride.

"It's a whole matter of the environment adapting to you Cheap Nike Air Max 2017 and learning about you," he Nike Air Max 2017 Womens said. "Every mechanical thing potentially that we deal with, has a potential of being automated and becoming much more convenient for us."